问SAT2010,1月的一道数学题?求详细解析。谢谢
whenprintingalineoftext,aprinterbegins1inchfromtheleftedgeofthepaperandends5/4inchesf...
when printing a line of text , a printer begins 1 inch from the left edge of the paper and ends 5/4 inches from the right edge. if the paper is 17/2 inches wide , how many inches can be used for printing each line? 答案是25/4
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